Brand from Germany: Schwarzkopf. A special hair treatment used once or twice a week that leads to the ideal lustrous hair that is moist and smooth.With nano-emulsion technology, oil ingredients are 3 times more than the oil treatment in the same series.The oil is emulsified with fine particles that are less than 1/1000 of the normal size, allowing the dense oil to penetrate deep into the core of the hair, preventing stickiness and bringing out the shine from the inside of the hair.How to use:After shampooing, lightly remove moisture, apply an appropriate amount to the entire hair, leave it for about 5 minutes, and then rinse thoroughly.Recommend using it once or twice a week instead of treatment.